A new soft intermediate polar: RX J0512.2-3241 in Columba

Details A new soft intermediate polar: RX J0512.2-3241 in Columba A new soft intermediate polar: RX J0512.2-3241 in Columba

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...310l..25b&link_type=abstract

Astronomy and Astrophysics, v.310, p.L25-L28

Astronomy and Astrophysics

Astrophysics

24

Accretion, Accretion Disks, Stars: Individual (Rxj0512.2-3241), Stars: Novae, Cataclysmic Variables, Stars: Magnetic, X-Rays: Stars

Scientific paper

We report the discovery of a new magnetic cataclysmic variable, identified as the V~17.6mag optical counterpart of the bright, soft, high-galactic latitude X-ray source RXJ0512.2-3241 detected during the ROSAT All-Sky Survey RASS). The X-ray spectrum shows a soft component with no intrinsic absorption and a blackbody temperature kT_bb_~38eV, similar to polars. From our optical follow-up B and V CCD photometry we derive most probable spin and orbital periods of (863.5+/-0.7)s and (3.45+/-0.03)h respectively. We suggest that 0512-32 is another member of the small new class of soft X-ray intermediate polars. A lower limit for the distance to the system is d>740pc.

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